This up-to-date test preparation manual for the AP Environmental Science exam presents two full-length practice exams with all questions answered and explained plus an extensive subject review. Test topic reviews fall into three general categories: Earth Systems and Resources; The Living World; and Population. Each section is filled with practice questions and quizzes with answers. The manual also presents an overview of the test, helpful test-taking strategies, and hundreds of diagrams and illustrations.Newly available with the 3rd edition is a CD-ROM presenting additional full-length practice tests that feature automatic scoring.